Linear Systems Involving Speed and Current
· In this unit there are some problems where, writing equations for word problems require knowledge of speed and current.
· The formula for speed is as follows:
· The formula for speed is as follows:
· Current problems (flow of water or air) are dependent on the type of current.
o If the current is downstream, then the speed is speed of the object plus the speed of current.
o If the current is upstream, then the speed is speed of the object minus the speed of current.
o If the current is downstream, then the speed is speed of the object plus the speed of current.
o If the current is upstream, then the speed is speed of the object minus the speed of current.